Home / 10,040.85-13,856.93-5,564.51

Finding the Fourth Proportional to 10,040.85, 13,856.93 and 5,564.51

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Solution

The fourth proportional to 10,040.85, 13,856.93 and 5,564.51 is: 7,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.85 : 13,856.93 = 5,564.51 : x
  2. Step 2: Convert to fraction form
    10,040.85/13,856.93 = 5,564.51/x
  3. Step 3: Cross multiply
    10,040.85x = 13,856.93 × 5,564.51
  4. Step 4: Simplify right side
    10,040.85x = 77,107,025.55
  5. Step 5: Solve for x
    x = 77,107,025.55/10,040.85
  6. Step 6: Final answer
    x = 7,679.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.